123111143133 has 16 divisors (see below), whose sum is σ = 189604328256. Its totient is φ = 70223824640.

The previous prime is 123111143069. The next prime is 123111143137. The reversal of 123111143133 is 331341111321.

It is a cyclic number.

It is not a de Polignac number, because 123111143133 - 2⁶ = 123111143069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123111143137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109724166 + ... + 109725287.

It is an arithmetic number, because the mean of its divisors is an integer number (11850270516).

Almost surely, 2^123111143133 is an apocalyptic number.

It is an amenable number.

123111143133 is a deficient number, since it is larger than the sum of its proper divisors (66493185123).

123111143133 is a wasteful number, since it uses less digits than its factorization.

123111143133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219449484.

The product of its digits is 648, while the sum is 24.

Adding to 123111143133 its reverse (331341111321), we get a palindrome (454452254454).

The spelling of 123111143133 in words is "one hundred twenty-three billion, one hundred eleven million, one hundred forty-three thousand, one hundred thirty-three".